Compression fatigue failure of CFRP laminates with impact damage

Nobuhide Uda, Kousei Ono

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The objective of this study is to investigate failure mechanisms of compression fatigue behavior of impact-damaged CFRP laminates. Two kinds of composite materials, UT500/Epoxy and AS4/PEEK, were used to examine the dependence of failure behavior on the material properties such as interlaminar toughness. Impact-induced delaminations in the UT500/Epoxy specimen were relatively larger than those in the AS4/PEEK specimen. The S-N curves for the UT500/Epoxy specimens with impact damage showed a similar tendency to those without impact. And the impactinduced delamination in the UT500/Epoxy specimen grew widthwise to the free edge on the rear side of the specimen during the fatigue test. On the other hand, the AS4/PEEK specimens without impact showed the steeper slope of the S-N curve in comparison with those with impact. The delaminations in the impacted AS4/PEEK specimen never reached the free edge before the fatigue fracture.

Original languageEnglish
Title of host publicationProceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness
Subtitle of host publicationFrom Green Composites to Aerospace"
Publication statusPublished - Dec 1 2007
Event16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto, Japan
Duration: Jul 8 2007Jul 13 2007

Publication series

NameICCM International Conferences on Composite Materials

Other

Other16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
CountryJapan
CityKyoto
Period7/8/077/13/07

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Ceramics and Composites

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